Added Ocata release notes

Change-Id: I2b2a21369526df33df54d25b2cd5653ce8fffc6d

releasenotes/notes/collectd-datasource-a730f06aff840c8f.yaml

@@ -0,0 +1,6 @@
+---
+features:
+  - A new ``Collectd Datasource`` was added, to handle notifications coming
+    from collectd. collectd is a fast system statistics collection daemon,
+    with plugins that collect different metrics. We tested the DPDK plugin,
+    that can trigger alarms such as interface failure or noisy neighbors.

releasenotes/notes/doctor-datasource-59ee5b2afb677ab4.yaml

@@ -0,0 +1,8 @@
+---
+features:
+  - A new ``Doctor Datasource`` was added in order to support the OPNFV Doctor
+    Inspector requirements. This datasource handles notifications sent from
+    the Doctor monitor. If a ``compute.host.down`` notification arrives,
+    the Doctor datasource will create an alarm on the host in Vitrage,
+    call nova force-down API and create deduced alarms on the relevant
+    instances and applications.

releasenotes/notes/static-datasource-refactoring-2cc7569fafbe65c6.yaml

@@ -0,0 +1,12 @@
+---
+features:
+  - The Vitrage ``Static Datasource`` is meant to define in a yaml file cloud
+    resources that cannot be retrieved dynamically. Switches are a good
+    example, as currently no OpenStack project provides information about them.
+    In Newton, only switches could be defined in the static yaml files.
+    In Ocata the file definition was enhanced, so the user can define
+    practically everything. The new schema is subset of the Vitrage evaluator
+    templates schema, to make it easier to use and maintain.
+deprecations:
+  - The ``static_physical`` file format is deprecated. Please use the new
+    ``static`` file format instead.

releasenotes/notes/support-aodh-notifications-cc495f3bc137099d.yaml

@@ -0,0 +1,8 @@
+---
+features:
+  - The ``Aodh Datasource`` is used to collect alarms from Aodh and pass them
+    to Vitrage, so Vitrage can correlate them with other alarms in the system.
+    In Ocata we added support for receiving immediate notifications on alarm
+    state changes from Aodh. This allows Vitrage to act immediately in case
+    Aodh detects a problem and there is a need to trigger new alarms (e.g. on
+    an application) or modify the states of resources.

releasenotes/source/conf.py

@@ -23,6 +23,7 @@ sys.path.insert(0, os.path.abspath('../..'))
 extensions = [
     'sphinx.ext.autodoc',
     # 'sphinx.ext.intersphinx',
+    'reno.sphinxext',
     'oslosphinx'
 ]
 

releasenotes/source/index.rst

@@ -1,5 +1,6 @@
-Vitrage Release Notes
+======================
-=====================
+ Vitrage Release Notes
+======================
 
 Contents
 ========
@@ -10,8 +11,8 @@ Contents
    unreleased
 
 
-   Indices and tables
+Indices and tables
-   ==================
+==================
 
-   * :ref:`genindex`
+* :ref:`genindex`
-     * :ref:`search`
+* :ref:`search`